Watch: Trudeau describes how the new COVID-19 contact tracing app will workPrime Minister Justin Trudeau unveils a new smart phone application designed to warn people when they have come into contact with someone who has tested positive for COVID-19. Contact tracing is widely seen as vital to a country's pandemic recovery. The tech giants are providing the software, but public health agencies around the world will have to develop their own contact tracing apps. The government-backed national contact tracing app is built on COVID Shield, seen here, an open sourced tool developed by a group of volunteers from Shopify. Privacy advocates have raised concerns about contact tracing apps — about the data they collect and how that information is stored.

Source: CBC News June 18, 2020 13:35 UTC